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Finding the Fourth Proportional to 70,331.75, 97,103.08 and 62,765.08

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Solution

The fourth proportional to 70,331.75, 97,103.08 and 62,765.08 is: 86,656.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,331.75 : 97,103.08 = 62,765.08 : x
  2. Step 2: Convert to fraction form
    70,331.75/97,103.08 = 62,765.08/x
  3. Step 3: Cross multiply
    70,331.75x = 97,103.08 × 62,765.08
  4. Step 4: Simplify right side
    70,331.75x = 6,094,682,584.45
  5. Step 5: Solve for x
    x = 6,094,682,584.45/70,331.75
  6. Step 6: Final answer
    x = 86,656.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.